package com.day12;

public class SystemDemo {
    public static void main(String[] args)
    {
       long start=System.currentTimeMillis();
       for(int i=0;i<=100000;i++){
           System.out.println(i);
       }
       long end =System.currentTimeMillis();
       System.out.println("程序运行时间："+(end-start)+"ms");
    }
}
